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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)988 9673 <br /> Iwo Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> 0 <br /> r:MCON Client Project ID ARCO 548, Stockton, CA Sampled Feb 10, 1998 <br /> 1433 N Market Blvd Sample Matrix Soil Received Feb 11, 1998 <br /> Sacramento, CA 95834 Analysis Method EPA 5030/8020, DHS Luft Reported Feb 12, 1998 <br /> Attention Mark Capps First Sample # 802-0225 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Sample Sample Sample Sample <br /> Analyte Units Results Results Results Results Results Results <br /> mg/kg 802-0225 802-0226 802-0227 802-0228 802-0229 802-0230 <br /> PL-1 (3) PL-2(3) PL-3 (3) PL-4 (3) PL 5 (3) PL-6 (3) <br /> Purgeable N D N D 13 N D N D N D <br /> Hydrocarbons Reporting Limit 1 0 10 10 10 10 10 <br /> Benzene N D N D 00054 N D N D N D <br /> Reporting Limit 00050 00050 00050 00050 00050 00050 <br /> Toluene N D N D 013 N D N D N D <br /> Reporting Limit 00050 00050 00050 00050 00050 00050 <br /> Ethyl Benzene N D N D 0 028 N D N D N D <br /> Reporting Limit 00050 00050 00050 00050 00050 00050 <br /> 4ktal Xylenes N D N D <br /> 019 ND ND ND <br /> Reporting Limit 00050 00050 00050 0 0050 00050 00050 <br /> Chromatogram - Weathered - <br /> Pattern Gasoline <br /> C6-C12 <br /> Quality Control Data <br /> Date Analyzed 02/11/98 02/11/98 02/11/98 02/11/98 02/11/98 02/12/98 <br /> Instrument Identification GCHP-1 GCHP-1 GCHP-1 GCHP-1 GCHP-2 GCHP-1 <br /> Surrogate Recovery, % 87 94 98 97 97 93 <br /> (QC Limits = 60-140%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> "UOIA ANALYTICAL, ELAP #1624 <br /> Ronald W Bobel <br /> Project Manager/Sacramento Laboratory <br /> 8020225 EMC <1 <br />